799584 594058 Carburetor Kit with spark plug and air filter assembly compatible with B&S Carb 594057 592361 594529 for Troy Bilt TB110 TB200 103M02 09P702 550EX 625EX 675EX 725EXI LC121P

What It Is

This is a complete tune-up kit for small Briggs & Stratton engines, combining a carburetor, spark plug, and air filter assembly. It’s designed for Troy-Bilt TB110, TB200, and similar lawn tractors, plus other equipment using B&S single-cylinder engines like the 550EX, 625EX, 675EX, and 725EXI.

Fitment & Compatibility

Before buying, verify your engine’s model number (e.g., 103M02, 09P702) and carburetor part number (e.g., 594057, 592361, 594529). This kit is aftermarket—not OEM—so it may differ slightly in finish or gasket thickness. Measure the carburetor mounting stud spacing (typically 2.5 inches center-to-center) and air filter housing dimensions to confirm physical fit. Also check that the included spark plug matches your engine’s gap and thread length (usually 0.030” gap, 14mm thread). This kit does not include fuel lines or primer bulbs.

Key Things to Know

• Quality varies: Some users report the aftermarket carb may need minor adjustments to the float height or idle mixture screw out of the box.
• Installation is moderate: Expect to remove the air filter housing, fuel line, and two mounting bolts. A small carburetor adjustment tool and thread locker help.
• Spark plug compatibility: The included plug may be a lower-tier brand; consider swapping for an OEM Champion RC12YC if you want longer life.
• Not for all B&S engines: Avoid if your engine uses a different carburetor mounting pattern or has a plastic intake manifold (some newer models).

Should You Buy It

This kit is a solid budget option for DIYers who need a quick, complete tune-up for a common Troy-Bilt or B&S engine and are comfortable with minor adjustments. Skip it if you want OEM precision or if your engine uses a non-standard carburetor pattern.